How does the light-collecting area of an 8-meter telescope compare to that of a 2-meter telescope?
A)The 8-meter telescope has 16 times the light-collecting area of the 2-meter telescope.
B)The 8-meter telescope has 4 times the light-collecting area of the 2-meter telescope.
C)The 8-meter telescope has 8 times the light-collecting area of the 2-meter telescope.
D)The answer cannot be determined from the information given in the question.

Question

Quizplus · Accepted Answer

The light-collecting area of a telescope is proportional to the square of its diameter. Therefore, the light-collecting area of the 8-meter telescope is (8/2)^2= 16 times that of the 2-meter telescope. So, the correct answer is A.

How Does the Light-Collecting Area of an 8-Meter Telescope Compare